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Web Services Using Visual Basic and ASP.NET
Rev. 2.0
Web Services Training Overview

This course provides a realistic, hands-on, comprehensive coverage of developing Web services using ASP.NET and Visual Basic. Web services are an evolving series of standards that enable programs on various computers to communicate with other programs on similar or disparate computers transparently over the Internet. This course teaches in detail the skills needed to program Web services using ASP.NET. It also examines the fundamentals of SOAP and WSDL essential for creating interoperable Web services. The course is current to .NET 2.0 and Visual Studio 2005, with coverage of new features such as the WS-I Basic Profile 1.1, SOAP 1.2, event pattern for calling Web services asynchronously, and more. It also includes an introduction to Web Service Enhancements (WSE) 3.0.

The first chapter introduces Web services and Service Oriented Architecture (SOA). The baseline Web service specifications of XML, SOAP, WSDL and UDDI are outlined.
Chapter 2 covers the fundamentals of SOAP and WSDL. Web services are developed using the .NET Framework SDK. Chapter 3 covers the details of how to create and debug ASP.NET Web services using Visual Studio 2005.

Chapter 4 shows how to create clients for Web services using an SDK tool and using Visual Studio 2005. Sophisticated topics, such as state management, caching and transactions in Web services are covered in Chapter 5. The next three chapters discuss important technologies at the foundation of ASP.NET Web services, including XML serialization, SOAP and WSDL.

Chapter 9 provides a practical discussion of data access using Web services. The course concludes with an introduction to Web service security using WSE 3.0, which provides implementation of advanced Web service protocols such as WS-Security, WS-Trust and WS-Policy. WSE 3.0 also provides a diagnostic message tracing tool, which is used in the course to trace SOAP packets, providing insight into the anatomy of Web services.

Web Services Training LEARNING OBJECTIVES

  • Gain a comprehensive understanding of the philosophy and architecture of Web services and Service Oriented Architecture
  • Acquire a working knowledge of creating and consuming Web services using the .NET Framework 2.0 and Visual Studio 2005
  • Attain a detailed knowledge of the building blocks of Web services, including XML, SOAP and WSDL
  • Understand issues in the ASP.NET programming model, such as caching, data handling and state management
  • Use WSE 3.0 to implement advanced Web services protocols
  • Understand the principle of Web services security and implement authentication on both the server and client
Web Services Training Prerequisites

Knowledge of the .NET Framework using Visual Basic and an understanding of the fundamentals of XML. Some experience in ASP.NET is advantageous.

Web Services Training Course duration

4 days

Web Services Training Course outline

1.What Are Web Services?
 
Introduction to Distributed Computing
Network Latency
Object State and Scalability
Interoperability
SOAP
WSDL
UDDI
Web Service Business Models
Service Oriented Architecture (SOA)
ASP.NET Web Services
Web Service Enhancements (WSE)
Windows Communications Framework (WCF)
 

2. Web Services Fundamentals
 
Creating a Web Service Using ASP.NET
Deploying a Web Service Using IIS
Testing a Web Service
HTTP
XML
SOAP 1.1 and SOAP 1.2
Web Service Clients
WSDL
 

3. Developing ASP.NET Web Services
 
Using Visual Studio 2005 to Develop Web Services
Visual Web Developer
Using ASP.NET Development Server
An Overview of the Web Services Namespaces
Deriving from the WebService Class
@Webservice Attribute
WebService Class
Adding a WebMethod to Web Services
Debugging Web Services
WS-I Basic Profile
ASP.NET Configuration
 

4. Web Service Clients
 
Web Service Proxies
Web Services Description Language Tool (Wsdl.exe)
Understanding the Proxy Code
Creating a Proxy with Visual Studio 2005
Returning Complex User-Defined Data Types
Writing a Client for the Google Search API
 

5. ASP.NET Web Services Programming Model
 
Asynchronous Programming in Web Services
Asynchronous Events in .NET 2.0
Managing State in ASP.NET Web Services
Transactions in ASP.NET Web Services
Caching in ASP.NET Web Services
 

6. XML Serialization
 
XmlSerializer
What Is Not Serialized
Writing and Reading XML
Customizing XML Serialization
XML Schema and XSD
Creating Classes from Schemas
XML Serialization and Web Services
 

7. More about SOAP
 
The Structure of SOAP Messages
Using SOAP Headers
SOAP Faults
Document and RPC Style Messaging
Literal and Encoded Use
Customizing SOAP with Attributes
Using SOAP 1.2
 

8. More about WSDL
 
The Need for Service Description
An IDL for Web Services
WSDL Namespaces
The WSDL Description Model
WSDL Descriptors as Schema
Message Description
Messaging Scenarios
Operations: Input, Output, and Fault
Messages
Service Description
Extending WSDL
.NET WSDL Classes
WSDL First!
 

9. Data Access with Web Services
 
Multiple-Project Solutions in Visual Studio
Multiple-Tier Data Access
Data Access Using ADO.NET 2.0
A Data Access Web Service
Data Binding with Windows Forms
Using Typed DataSets
Binding to a Web Service
 

10. WSE 3.0 and Web Services Security
 
Web Service Enhancements (WSE)
Windows Communications Framework (Indigo)
When to Use WSE
WSE Architecture
A WSE-Enabled Web Service
WSE Settings 3.0 Tool
WSE Message Tracing
A WSE-Enabled Client
Web Services Security
Server Authentication
X.509 Certificates
Policy Files
User Name Authentication
 

Appendix A. Learning Resources
 

Appendix B. Configuring IIS for ASP.NET 2.0
 
System Requirements

Course exercises require Microsoft .NET 2.0 and Microsoft Visual Studio 2005. The preferred operating system is Windows XP Professional with Internet Information Services. WSE 3.0 should be installed. See the appropriate course Setup Guide for details.

A good minimal hardware profile for this course would have a 1 GHz or better CPU, 256 MB of RAM, and at least 4 GB of free disk space for tools installation and courseware.


 
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